Why does PAIN occur? Understand the Mechanism of Pain

Pain is an unpleasant and distressing physical sensation caused by disease or injury, which induces hurt and anxiety in those suffering from it.
There are many different manifestations of pain, ranging from short term (acute pain) to long term (chronic pain). Other classifications include pain in the internal organs (visceral pain), injured tissue (inflammatory pain), nerves (neuropathic pain), etc.

The reason for the occurrence of pain depends on the cause and kind of pain being experienced. In most cases, pain acts as a warning sign that the body has been afflicted by a disorder of some sort, which may have arisen due to internal sickness or external wounding. Acute pains are generally cured on their own through rest or simple medication. Chronic pains, on the other hand, are more complicated in nature and the treatment requires more elaborate diagnosis.

The mechanism of pain

Pain is an extremely personal and subjective experience and affects each individual to varying degrees. The pain signals, which can arise in any part of the body, travel through the spinal cord to the brain along thousands of specialized nerves and nerve fibres. In the brain, it is processed in the centres associated with anxiety, emotions, memory, appetite, etc. Signals and pain inputs are then returned from the brain to the spinal cord, which may heighten or diminish pain.

In some cases, pain may also be induced by damage to the brain and spinal cord, which happens after a stroke.
A constant barrage of pain signals may cause the cells at the end of nerve fibres to become over-sensitized. This is known as 'wind-up' and is one of the most common causes of chronic pain that occurs even though the root of the problem has been identified and treated.

The causes and effects of pain differ from case to case depending on the signals received by the brain and its interpretation. It affects the individual's day to day activities and if persistent, can also have a harmful impact on mental health and psychosis. Pain is always handled, diagnosed and treated differently in all patients by drawing out the best possible solution to the problem.





Why does PAIN occur? Understand the Mechanism of Pain

Stress is sometimes good for you. When you stretch yourself beyond your capacity, your body accepts challenge and increase the capacity to cope up with challenge. To a certain extent, it is good for body. But when the stress crosses the limits, it starts hurting you. That's the bad stress for you. Moderate stress for too long a time also is bad for you. Most of the hormonal diseases like diabetes, thyroid etc. Occur because of long standing underlying moderate stress. 

Stress can be physical or mental. Physical stress is due to long and continuous physical activities like walking, jogging, travelling, cycling. Mental stress is mainly because of financial tension or relationship distress. Both types of stress cause similar damages to body. Stress is the main underlying cause behind diseases like high blood pressure, heart disease, thyroid, diabetes, kidney disease, peptic ulcer, bleeding disorders, cancer, recurrent infections etc. 

Finding out the reason of stress and removal of cause of stress should be the main line of treatment of such diseases.

Stress - Good and Bad

Knee pain is a common phenomenon that plagues most of the people irrespective of their age. It can be the outcome of a torn cartilage or a ruptured ligament. Medical complications, such as infections, gout or arthritis (painful inflammation and stiffness of the joints) can also give way to knee pain. Minor knee pain can be eased by self-care remedies such as physical therapy or by putting on knee braces. However, few complications might demand surgical repair. Pain can be managed by the pain management specialists.

Tips to manage knee pain

1. Medications such as naproxen, ibuprofen and acetaminophen can be administered to help remedy knee pain.
2. You can seek relief by massaging your knees with ointments constituting of a number of agents such as capsaicin or lidocaine.
3. Keep away from your usual chores to prevent repetitive strains on the knees, thus, allowing the injury to heal as well as to stay safe from further damage.
4. Applying an ice pack in a towel can ease the inflammation and pain. But do not extend its usage for more than 20 minutes because that might harm the skin and nerves.
5. Compression bandages can inhibit fluid accumulation in the damaged tissues aiding knee alignment stability. Ensure that it is tight enough to render support to your knees without actually obstructing blood circulation.
6. To pacify the swelling, try resting your sore leg on a pillow (the idea here is to keep the affected leg elevated to reduce further pain).
7. Shed off your extra pounds as being overweight increases chances of other disorders such as osteoarthritis.
8. Go for regular work outs to enhance and maintain the flexibility of your muscles as excessively weak or abnormally tight muscles can contribute to injuries. Be smart while choosing your method of exercise based on the condition you are suffering from.

Knee Pain - 8 Effective Ways to Manage it

Your knee is a very complex structure consisting of bones, ligaments, cartilage, tendons, muscles and meniscus. Most people encounter knee pain at some point in their lives. If your knee pain is chronic in nature, then it may last for a prolonged period.

Many causes may be responsible for your knee pain. Some of the causes are stated as follows:
1. Your knee is very much prone to injuries. Knee injuries may happen due to accidents, falling down carelessly or while playing sports. The most common knee injuries that may be the cause for your knee pain are mentioned as follows: 
a) Fractures may cause you to feel pain in the areas of your knee bones.
b) Anterior Cruciate Ligament injury (ligament injury caused by twisting and a sudden motion) or Medial Collateral Ligament injury (injury to the tissue in the insides of your knee) is very common to sportspersons and may be the reason for severe knee pain.
c) Sometimes your knee bones may get dislocated from their usual alignment. This can also make you experience severe knee pain.
d) Ligament injuries, meniscus tear or tendon tear can also be responsible for your knee pain.

2. Sometimes pain in your buttock or foot region can also result in mild knee pain.

3. At times chronic problems like osteoarthritis that affects the cartilage can cause the problem of knee pain. Other chronic problems like Gout, rheumatoid arthritis can also cause severe knee pain.

4. Being overweight can also result in knee pain.
The symptoms of knee pain may be different in each case. The most common symptoms are mentioned below:
a) Stiffness of knee
b) Swelling of your knee
c) You may also feel unstable
d) Difficulty in walking or bending of your knee.
e) You may notice redness in your knee area.

Knee pain must not be ignored. It is highly recommended for you to seek advice from an orthopedic as soon as you encounter any of the above mentioned symptoms.

Suffering from Knee Pain - Know What Causes it? 

Myths about Total Knee Replacement

Myth#1 - Knee replacement is a surgery for old people. “I’m too young for a knee replacement.”
Fact - Candidacy for a knee replacement is not based on age, but on the person’s level of pain and immobility. Living with a painful joint that prohibits you from working or participating in normal life activities is an outdated way of thinking. Age is not necessarily a limiting factor. Often times, a patient is actually fearful about the uncertainty of surgery. Once they are able to resume many of the activities they enjoyed before the surgery, with increased mobility and with less pain, they are very happy they had the surgery. The quality of life one achieves by living without knee pain is priceless.

Myth#2 - “I should wait as long as possible to undergo knee replacement surgery” 
Fact - You don't need to suffer by waiting until the pain is intolerable. The longer life of joint replacements enables people to consider surgery earlier and at a younger age. Osteoarthritis is a degenerative disease that continues to damage the joint and delaying surgery makes both surgery and return to activity more difficult. Delaying surgery lowers a patients’ quality of life not only before the operation, but even for up to two years following surgery.

Myth#3 - “I should continue with medications as long as possible”
Fact - Medicines including painkillers just give symptomatic relief for a temporary duration and prolonged usage is riddled with serious side effects such as renal failure, peptic ulceration  etc. All these medicines are NOT curable.

Myth#4 - Alternative therapies such as acupressure, ozone treatment, massage beds, oils, laser therapy, magnetic therapy; braces will cure my advanced arthritis and knee pain.
Fact - Till date there is NO cure for advanced knee arthritis and these alternate therapies are not backed by established scientific data. All these modalities give temporary pain relief in early to moderate arthritis for some duration only and are NOT curative. Often times, a patient who is actually fearful about the uncertainty of surgery lands up trying these in order to avoid surgery. 

Myth#5 - After a knee replacement, it takes months to recover.
Fact - Depending on the activity, most patients who undergo knee replacement are able to perform routine tasks within a few weeks. A return to rigorous activity takes only a few months. One becomes independent for himself before discharge from hospital. There’s no prolonged best rest required after the surgery.


Myth#6 - After knee replacement, I’ll have to give up some activities and sports.
Fact - You have a high probability of getting back to activities like brisk walking or cycling in 6 to 12 weeks. It will take a bit longer to return to more rigorous activities and contact sports. Squatting and sitting cross legged though possible but at best should be kept to minimal.

Myth#7 - Knee replacement surgery leaves a large scar that is noticeable.
Fact - Scarring is minimal compared to traditional surgery. In fact, the scar is typically only 3 to 5 inches long. As time passes, the scar will fade and become less noticeable.

Myth#8 - Knee replacement is a very painful surgery. There is lots of pain in post operative period.
Fact - With modern day pain management such as in a multimodal approach, ensures that the patient does not feel any pain in post op period and has a smooth recovery.

Myth#9 - Knee replacement is done one at a time.
Fact - Both the knees can be operated at the same time if the patient does not have significant co morbidities and is deemed fit to undergo the procedure by the doctor.

Myth#10 - The new knee lasts for 5-6 yrs. only.
Fact - With modern day precision including computer assisted knee replacement and advancement in biomaterials, the survivorship has increased considerably. Today's joint replacements last 25 years or longer and, for most people, will last a lifetime.

Myth#11 - Knee replacement cannot be done a second time.
Fact - Knee replacement can be done multiple times what is called as a revision joint replacement surgery with good survivorship.

Myth#12 - “I am obese, I cannot undergo Knee replacement surgery.”
Fact - Knee replacement can be successfully done in an obese patient though the recovery is somewhat prolonged and might require additional implants. However, patients who are morbidly obese and have restricted mobility primarily due to obesity are better off after a bariatric procedure.

Myth#13 “I have diabetes or hypertension or heart ailment, so  I cannot undergo Knee replacement surgery.”
Fact  - diabetes hypertension or heart.



From Lybrate: If you found this tip useful, please thank the doctor by clicking on the heart icon below. Also, spread good health by sharing this tip with your loved ones over WhatsApp, Facebook and other media.

 13 Myths About Total Knee Replacement (TKR), Busted!

Hot and Cold therapy is one of the most popular home remedies for any kind of joint pain or muscle sprain. In some cases applying heat therapy and cold therapy alternatively, can help relieve the pain while for others only one form of therapy is necessary. To understand what to use when, one should first understand the effect of heat and cooling on the body.

Applying a heat pack or immersing the affected limb in hot water improves blood circulation and makes the muscles more flexible. Thus, it can help relax a muscle and fasten the healing of damaged tissues. On the other hand, cold therapy or cryotherapy reduces blood flow to the affected site. This helps relieve inflammation and pain caused by it. It can also make the area feel numb by reducing nerve activity temporarily.

Types of Heat Therapy
Heat therapy can be categorized as dry heat and moist heat. Dry heat involves using saunas or dry heating packs to relieve pain. This is also known as conducted heat therapy. As the name suggests, moist heat involves the use of steamed towels, hot baths and moist heating packs. This is also known as convection heat therapy. Moist heat is usually considered more effective than dry heat.

Types of Cold Therapy
Cold therapy may be applied to a part of the body or to the entire body. This includes ice packs, coolant sprays, ice baths, ice massages and whole body, cold therapy chambers.

How to use heat and cold therapy?
The sooner heat and cold therapy is given to a person, the faster they will recover from their pains. Heat therapy can be given to a person for extended periods of time but when giving cold therapy, a person should not be exposed to a cold pack or ice bath for more than 10-15 minutes. Care should also be taken no to apply ice or a frozen pack directly on the skin as it can damage the skin and nerves.

When not to use Heat Therapy?
If the injury site is swollen or bruised, cold therapy is better than heat therapy. Heat therapy should also not be applied to an open wound. People suffering from conditions such as diabetes, dermatitis, deep vein thrombosis, vascular diseases and multiple sclerosis should also avoid heat therapy as these conditions can increase the risk of burns and other such complications. Pregnant women should also consult a doctor before using a hot tub or sauna.

When not to use Cold Therapy?
Cold therapy is avoidable for treating stiff joints and muscles. People suffering from poor circulation and sensory disorders should also avoid using cold therapy without a doctor s supervision. 

Hot & Cold Therapy - How It Can Treat Pain?

Don't wait any longer, manage your Knee Pain online with a Lybrate doctor today

Consult for Knee Pain - Online and Easy!

FilterClear All

COMMON SPECIALITIES

COMMON ISSUES